package org.istone.mylife.core.test.stereotype;

/**
 * 
 * @author Stone
 * @date Dec 14, 2011 9:55:04 PM
 */
public interface SimpleCalculator {

    SimpleCalculator plus(float number);
 
    SimpleCalculator substract(float number);

    SimpleCalculator multiply(float number);

    SimpleCalculator divide(float number);

    double getResult();

    SimpleCalculator clear();
}
